Any top university for engineering graduate school expects students to submit a number of important documents or a copy of those documents along with an application letter.
- Test results of GRE (mostly required in the USA)
- IELTS/TOEFL/PTE Scores
- Statement of purpose
- Letter of recommendation
- Resume
- Grades secured in other institution
- Passport and student visa
- Financial statement
- Leaving certificate
Suggested: LOR for MS in Aerospace Engineering